George j



' GEORGE J. BUEcH'ER'r, or

.- ERIC A; STARKE AND "ROBERT P T NT O IG isA'N- nRAN'cIsco, CALIFORNIA,AssieNoR 'ro ,tLA'YNe, or SAMErPLAOE EXPLOSlVE commune.

' SP ECIF IGATIQhl forming part of Letters Patent Nor 524.776, datedAugust 21, 1894.,

- Application filed July 20, 1893. Serial No. 481,048 lHo specimens.)

To allwhom it may concern:

I Be it known that I, GEORGE J. BUEGHERT, acitizen of the United States,residing'in the city and county of San Francisco, State of Oalit'ornla,have invented an Improvement in Explosive Compounds; and I herebydeclare the following to be a full, clear, and exact de-- scription ofthe'same.

- My invent-ionrelates, to an improved ex contactwith the nitrate ofsoda or other alv kali as will allow the che ical change taking placeinthetwo substan. es at ordinary temperature.

In the preparation of my compound I first take the sulphate of ammoniareduced to the proper condition for the formation of powder,

and I mix with it a small proportion of resin oil or any other wellknown resinous, fatty, or other protective coating substance.

In one hundred pounds by weight I take eighty-five parts sulphate-ofammonia, and aboutfifteen parts of the coating substance which isintimately mixed with the sulphate of ammonia until it forms a coatingfor the particles, and thus prevents their iorming reason of the coatingcoating of such contact with the nitrate of soda or other alkali,

as will allow of the chemical change taking place in the two substances,which it When this'coating has been effected, I take byweightthirtyparts of sulphate of ammo nia, forty parts nitrate of soda, and mix withthem fiveparts'of woodpu-lp, andthen' add twenty-five parts'ofnitroeglycerinei--,This' does by preventing any direct contact-betweenthe particles of the two substances.

fcrrnsva very efEeetive-highexplosive, and by t 45 the two substances,sulphate or chloride "of I am enabled toemploy ammonia with thenitrate01? an alkali, and to;

maintain the powder thus made in an unchanged condition.

Having thus described ters Patent, is

t The comnound consisting of asalt of am-f set forth and nitrate of sodawith a protective substance whereby act" ual contact between theparticles of the two substances is prevented, and wood pulp and monia asmy invention, what' I claim as new, and desire to secure byLetnitro-glyce'rine, substantially as herein tie-,-

scribed.

In witness whereof I have hereunto set my 7 hand. I {GEORGE J. BUEOHERT.

' Witnesses:

Gno; H. STRONG, S. H. Nonnsn;

